Silica Gel: Purpose, Origin, How Is It Made, Types, and Uses
16 min read. Silica gel is applied as a desiccant and used to control moisture and humidity levels in a spectrum of applications. Its primary function is to adsorb and retain airborne or contact-surface moisture. This serves to prevent the growth/progress of mold/mildew, corrosion, and other moisture-related damage issues in products.